Border Help!!!

First off, thank you to all who helped with my transfer crisis!! Haha. I tried making my husband's bday cake (which has the EGA on it) with a CT & it worked! Anyways, on to my second crisis. I don't know what kind of border to make for the cake. He doesn't want it to look "girly" (lol); what kind of border would add some "masculinity" to the cake?? Thank you!